28284021

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{541}}^1$

素因数の和:741

約数の個数: 24

約数和(自身を含む): 42304184

約数和(自身を除く): 14020163

約数列:

[1, 3, 9, 37, 111, 157, 333, 471, 541, 1413, 1623, 4869, 5809, 17427, 20017, 52281, 60051, 84937, 180153, 254811, 764433, 3142669, 9428007, 28284021]

約数ペア:

[(1, 28284021), (3, 9428007), (9, 3142669), (37, 764433), (111, 254811), (157, 180153), (333, 84937), (471, 60051), (541, 52281), (1413, 20017), (1623, 17427), (4869, 5809)]